Home / 18,220.50-27,329.86-5,072.58

Finding the Fourth Proportional to 18,220.50, 27,329.86 and 5,072.58

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Solution

The fourth proportional to 18,220.50, 27,329.86 and 5,072.58 is: 7,608.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,220.50 : 27,329.86 = 5,072.58 : x
  2. Step 2: Convert to fraction form
    18,220.50/27,329.86 = 5,072.58/x
  3. Step 3: Cross multiply
    18,220.50x = 27,329.86 × 5,072.58
  4. Step 4: Simplify right side
    18,220.50x = 138,632,901.24
  5. Step 5: Solve for x
    x = 138,632,901.24/18,220.50
  6. Step 6: Final answer
    x = 7,608.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.